@danamo: Well, it is not my app, i only wrote a little tut about it. It was created by funker. 

As far as i know, there is no animation capabilty at all within TerraBrush. But there is an Terragen app, that can morph one terrain in another for animation purpose. I never worked with it, so i don't know what kind of file it generates.
It is called Terranim. For more info take a look here: www.nicolas-hoffmann.net/tutoriel_terranim/index_english.php

The programm itself is hosted at ashundar.com, but the site seems to be down because of updates...terranim.ashundar.com/

Matthias

My Homepage: [Alien Artifacts]